SUSE update for grub2

1) Configuration

EUVDB-ID: #VU74576

Risk: Low

CVSSv4.0: 0.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: N/A

CWE-ID: CWE-16 - Configuration

Exploit availability: No

Description

The issue may allow a local user to bypass implemented security restrictions.

The issue exists due to the possibility to bypass implemented security restrictions, related to secure boot. it was addressed by rebuilding the package with the new secure boot key.

Mitigation

Update the affected package grub2 to the latest version.

Vulnerable software versions

SUSE Manager Proxy Module: 4.3

Server Applications Module: 15-SP4

SUSE Linux Enterprise Micro for Rancher: 5.3

SUSE Linux Enterprise Server for SAP Applications 15: SP4

SUSE Linux Enterprise Server 15: SP4

SUSE Linux Enterprise Real Time 15: SP4

SUSE Linux Enterprise High Performance Computing 15: SP4

SUSE Linux Enterprise Desktop 15: SP4

Basesystem Module: 15-SP4

openSUSE Leap Micro: 5.3

SUSE Linux Enterprise Micro: 5.3

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

openSUSE Leap: 15.4

grub2-s390x-emu-debug: before 2.06-150400.11.25.1

grub2-s390x-emu: before 2.06-150400.11.25.1

grub2-branding-upstream: before 2.06-150400.11.25.1

grub2-i386-efi-extras: before 2.06-150400.11.25.1

grub2-arm64-efi-debug: before 2.06-150400.11.25.1

grub2-powerpc-ieee1275-debug: before 2.06-150400.11.25.1

grub2-arm64-efi-extras: before 2.06-150400.11.25.1

grub2-s390x-emu-extras: before 2.06-150400.11.25.1

grub2-x86_64-xen-extras: before 2.06-150400.11.25.1

grub2-powerpc-ieee1275-extras: before 2.06-150400.11.25.1

grub2-i386-pc-extras: before 2.06-150400.11.25.1

grub2-x86_64-efi-extras: before 2.06-150400.11.25.1

grub2-x86_64-efi-debug: before 2.06-150400.11.25.1

grub2-powerpc-ieee1275: before 2.06-150400.11.25.1

grub2-i386-pc-debug: before 2.06-150400.11.25.1

grub2-i386-xen-extras: before 2.06-150400.11.25.1

grub2-systemd-sleep-plugin: before 2.06-150400.11.25.1

grub2-x86_64-xen: before 2.06-150400.11.25.1

grub2-arm64-efi: before 2.06-150400.11.25.1

grub2-x86_64-efi: before 2.06-150400.11.25.1

grub2-i386-pc: before 2.06-150400.11.25.1

grub2-snapper-plugin: before 2.06-150400.11.25.1

grub2: before 2.06-150400.11.25.1

grub2-debuginfo: before 2.06-150400.11.25.1

grub2-debugsource: before 2.06-150400.11.25.1

CPE2.3

• cpe:2.3:o:suse:suse_manager_proxy_module:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:server_applications_module:15-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_desktop_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:basesystem_module:15-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap_micro:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_retail_branch_server:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_server:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_proxy:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap:15.4:*:*:*:*:*:*:*
• cpe:2.3:a:suse:grub2-s390x-emu-debug:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:grub2-s390x-emu:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:grub2-branding-upstream:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:grub2-i386-efi-extras:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:grub2-arm64-efi-debug:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:grub2-powerpc-ieee1275-debug:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:grub2-arm64-efi-extras:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:grub2-s390x-emu-extras:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:grub2-x86_64-xen-extras:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:grub2-powerpc-ieee1275-extras:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:grub2-i386-pc-extras:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:grub2-x86_64-efi-extras:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:grub2-x86_64-efi-debug:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:grub2-powerpc-ieee1275:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:grub2-i386-pc-debug:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:grub2-i386-xen-extras:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:grub2-systemd-sleep-plugin:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:grub2-x86_64-xen:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:grub2-arm64-efi:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:grub2-x86_64-efi:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:grub2-i386-pc:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:grub2-snapper-plugin:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:grub2:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:grub2-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:grub2-debugsource:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20231717-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.